Page not found (404)

Request Method: GET
Request URL: http://lefrat.ru/blog/Skidka-20%25-na-Ol'hu-komplektom/
Raised by: mezzanine.blog.views.blog_post_detail

No BlogPost matches the given query.

You're seeing this error because you have DEBUG = True in your Django settings file. Change that to False, and Django will display a standard 404 page.